@Test public void sampleTest2() { String input = "d^f^f ^cee|de^f g^fe|d^f^f ^cee|d^fe dBA|\n" + "d^f^f ^cee|de^f g^fe|^fa^f g^fe|[1 d^fe dBA:|[2 d^fe d^cB|]\n" + "A3 B3|g^fe ^fdB|A^FA B2^c|d^fe d^cB|\n" + "A3 B3|e^fe e^fg|^fa^f g^fe|[1 d^fe d^cB:|[2 d^fe dBA|]\n" + "^fAA eAA| de^f g^fe|^fAA eAA|d^fe dBA|\n" + "^fAA eAA| de^f g^fe|^fa^f g^fe|d^fe dBA:|\n"; CharStream stream = new ANTLRInputStream(RepeatHandler.handleRepeats(input)); MusicGrammarLexer lexer = new MusicGrammarLexer(stream); lexer.reportErrorsAsExceptions(); TokenStream tokens = new CommonTokenStream(lexer); MusicGrammarParser parser = new MusicGrammarParser(tokens); parser.reportErrorsAsExceptions(); ParseTree tree = parser.root(); ParseTreeWalker walker = new ParseTreeWalker(); ConstructMusic listener = new ConstructMusic(new HeaderInfo()); walker.walk(listener, tree); Music sample = listener.getExpression(); try { SequencePlayer player = new SequencePlayer(200, 12); sample.play(player, 0); player.play(); Thread.sleep((long) sample.duration() * 1000); } catch (MidiUnavailableException | InvalidMidiDataException e) { e.printStackTrace(); } catch (InterruptedException uie) { uie.printStackTrace(); } }
public static void main(String[] args) throws Exception { CharStream in = new ANTLRFileStream(args[0]); MicroLexer lexer = new MicroLexer(in); CommonTokenStream tks = new CommonTokenStream(lexer); MicroParser psr = new MicroParser(tks); ParseTreeWalker walker = new ParseTreeWalker(); ExtractionListener extractor = new ExtractionListener(psr); psr.setErrorHandler(new BailErrorStrategy()); ParseTree t; try { t = psr.program(); } catch (Exception fpe) { fpe.printStackTrace(); System.out.println("Not accepted"); return; } walker.walk(extractor, t); TinyGenerator asmgen = new TinyGenerator(extractor.getIRList()); // Utils.printSymbolTable(extractor.getRootSymbolTable()); Utils.printIR(extractor.getIRList()); asmgen.printAll(); }
public static void main(String[] args) throws IOException { if (args.length < 2) { usage(); } boolean useTimeoutChecker = false; for (int i = 2; i < args.length; ++i) { String o = args[i]; if (o.equals("-timeout")) { useTimeoutChecker = true; } else { usage(); } } final Map<Integer, String> incOfMethod; final List<String> counters; try (FileInputStream fis = new FileInputStream(args[0])) { ANTLRInputStream input = new ANTLRInputStream(fis); Java7Lexer lexer = new Java7Lexer(input); CommonTokenStream tokens = new CommonTokenStream(lexer); Java7Parser parser = new Java7Parser(tokens); ParseTree tree = parser.compilationUnit(); Java7Profiler listener = new Java7Profiler(tokens, useTimeoutChecker); ParseTreeWalker walker = new ParseTreeWalker(); walker.walk(listener, tree); incOfMethod = listener.incOfMethod; counters = listener.counters; } try (BufferedReader input = new BufferedReader(new FileReader(args[0])); PrintWriter output = new PrintWriter(args[1])) { new Reader(useTimeoutChecker) .run( incOfMethod, counters, input, output, classNameFrom(args[0]), classNameFrom(args[1])); } }
@Test public void sampleTest() { String input = "C,, D,, E,, F,, | G,, A,, B,, C, | " + "C, D, E, F, | G, A, B, C | " + "C D E F | G A B c " + "| c d e f | g a b c' | " + "c' d' e' f' | g' a' b' c''\n"; CharStream stream = new ANTLRInputStream(input); MusicGrammarLexer lexer = new MusicGrammarLexer(stream); lexer.reportErrorsAsExceptions(); TokenStream tokens = new CommonTokenStream(lexer); MusicGrammarParser parser = new MusicGrammarParser(tokens); parser.reportErrorsAsExceptions(); ParseTree tree = parser.root(); ParseTreeWalker walker = new ParseTreeWalker(); ConstructMusic listener = new ConstructMusic(new HeaderInfo()); walker.walk(listener, tree); Music sample = listener.getExpression(); try { SequencePlayer player = new SequencePlayer(140, 12); sample.play(player, 0); player.play(); Thread.sleep((long) sample.duration() * 1000); } catch (MidiUnavailableException | InvalidMidiDataException e) { e.printStackTrace(); } catch (InterruptedException uie) { uie.printStackTrace(); } }
@Test public void shouldDetectQueryWithOrderAscClause() { InfluxQueryParser parser = parserFactory.newInstanceForQuery("select a from b order asc"); parseTreeWalker.walk(definitionsParser, parser.selectQuery()); SelectQueryDefinitions definitions = definitionsParser.getSelectQueryDefinitions(); assertFalse(definitions.isOrderDesc()); }
@Test public void shouldDetectTimespan() { InfluxQueryParser parser = parserFactory.newInstanceForQuery(queryText); parseTreeWalker.walk(definitionsParser, parser.selectQuery()); SelectQueryDefinitions definitions = definitionsParser.getSelectQueryDefinitions(); GroupByClause groupByClause = definitions.getGroupByClause(); assertEquals("time", groupByClause.getBucketType()); assertEquals(bucketSize, groupByClause.getBucketSize()); assertEquals(bucketSizeUnit, groupByClause.getBucketSizeUnit()); }
@Override protected void parse(File sourceFile) throws ParseException { try { GrammarConfiguration configuration = LanguageBase.createGrammarConfiguration( sourceFile, PHPLexer.class, PHPParser.class, new DefaultErrorListener(sourceFile)); ParseTree tree = ((PHPParser) configuration.parser).htmlDocument(); ParseTreeWalker walker = new ParseTreeWalker(); walker.walk(new PHPParseTreeListener(this), tree); } catch (Exception e) { throw new ParseException(e); } }
@SuppressWarnings("unchecked") public <Symbol> void walk(ParseTreeListener<Symbol> listener, ParseTree t) { if (t instanceof ParseTree.TerminalNode) { visitTerminal(listener, (ParseTree.TerminalNode<Symbol>) t); return; } ParseTree.RuleNode r = (ParseTree.RuleNode) t; enterRule(listener, r); int n = r.getChildCount(); for (int i = 0; i < n; i++) { walk(listener, r.getChild(i)); } exitRule(listener, r); }
int listenerWay() { CharStream stream = new ANTLRInputStream(EXPRESSION); CalculatorLexer lexer = new CalculatorLexer(stream); CommonTokenStream tokenStream = new CommonTokenStream(lexer); CalculatorParser parser = new CalculatorParser(tokenStream); // System.out.println(parser.c()); ParseTree tree = parser.c(); ParseTreeWalker walker = new ParseTreeWalker(); CalculatorWalker calcWalker = new CalculatorWalker(); walker.walk(calcWalker, tree); return calcWalker.getSum(); }
public static void main(String[] args) throws IOException { System.err.close(); // ANTLRInputStream input = new ANTLRInputStream( new FileInputStream( new File(args[0])) ); ANTLRInputStream input = new ANTLRInputStream(new InputStreamReader(System.in)); XsLogLexer lexer = new XsLogLexer(input); CommonTokenStream tokens = new CommonTokenStream(lexer); XsLogParser parser = new XsLogParser(tokens); ParseTree tree = parser.xsLog(); ParseTreeWalker walker = new ParseTreeWalker(); walker.walk(new SipPrinterListener(), tree); }
/** Test of AST Generation of class IntegerComparisonNode. */ @Test public void testAstGeneration() { System.out.println("BooleanLiteralNode - testAstGeneration"); final BooleanLiteralNode literal = new BooleanLiteralNode(true); final String inputRuleset = literal.toRulenode(); System.out.printf("Input Ruleset: %s\n", inputRuleset); final ANTLRInputStream inStream = new ANTLRInputStream(inputRuleset); final HCleanLexer lexer = new HCleanLexer(inStream); final CommonTokenStream tokenStream = new CommonTokenStream(lexer); final HCleanParser parser = new HCleanParser(tokenStream); final ParseTreeWalker walker = new ParseTreeWalker(); final RuleListener listener = new RuleListener(); final ParseTree parseTree = parser.booleanLiteral(); walker.walk(listener, parseTree); final String outputRuleSet = listener.peekStack().toRulenode(); System.out.printf("Expected: %s\n", inputRuleset); System.out.printf(" Result: %s\n", outputRuleSet); assertEquals(inputRuleset, outputRuleSet); }
/** * Return a complete RulePacket describing the definition expressed in the given string. Event * attributes, even for different event types, with the same name must have the same ValType (INT, * FLOAT, BOOL or STRING) * * @param rule: a String expressing the definition of the rule in TESLA * @return a RulePacket */ public static RulePkt parse(String rule, int index) { ANTLRInputStream input = new ANTLRInputStream(rule); TESLALexer lexer = new TESLALexer(input); CommonTokenStream tokens = new CommonTokenStream(lexer); TESLAParser parser = new TESLAParser(tokens); ParseTree t = parser.trex_rule(); ParseTreeWalker walker = new ParseTreeWalker(); // create standard walker TRexRuleParser extractor = new TRexRuleParser(); walker.walk(extractor, t); // initiate walk of tree with listener RulePkt res = extractor.getRule(); // debug Map<String, Integer> evt_ids = extractor.getPredicatesMap(); System.out.println("### NAMES -> IDS mapping ###\n"); for (String evtName : evt_ids.keySet()) { System.out.println(evtName + " -> " + evt_ids.get(evtName)); } System.out.println("\n### END ###"); return res; }
public static void main(String[] args) throws Exception { String inputFile = null; if (args.length > 0) inputFile = args[0]; InputStream is = System.in; if (inputFile != null) { is = new FileInputStream(inputFile); } ANTLRInputStream input = new ANTLRInputStream(is); PropertyFileLexer lexer = new PropertyFileLexer(input); CommonTokenStream tokens = new CommonTokenStream(lexer); PropertyFileParser parser = new PropertyFileParser(tokens); ParseTree tree = parser.file(); // create a standard ANTLR parse tree walker ParseTreeWalker walker = new ParseTreeWalker(); // create listener then feed to walker PropertyFileLoader loader = new PropertyFileLoader(); walker.walk(loader, tree); // walk parse tree System.out.println(loader.props); // print results }
/** * Parst einen Text und erstellt eine Liste mit Eigenschaften * * @param text - zu parsender Text * @return Liste mit Texteigenschaften */ public List<Integer> parseText(File text) { CharStream input = null; BufferedReader reader; try { reader = new BufferedReader(new InputStreamReader(new FileInputStream(text))); input = new ANTLRInputStream(reader); } catch (IOException e) { e.printStackTrace(); } SyntaxLexer lexer = new SyntaxLexer(input); CommonTokenStream tokens = new CommonTokenStream(lexer); SyntaxParser parser = new SyntaxParser(tokens); ParseTree tree = parser.stat(); ParseTreeWalker walker = new ParseTreeWalker(); // create standard walker List<Integer> list = new LinkedList<>(); AnalysisListener extractor = new AnalysisListener(list); walker.walk(extractor, tree); return list; }
/** * Mit dieser Methode werden die Merkmale aus den Texte herausgelesen und in eine CSV-Datei * gespeichert. * * @param texte - Eine Liste von Texten die Analysiert werden sollen. * @param name - Name der CSV-Datei. */ private static void texteEinlesen(File[] texte, String name) { CharStream input = null; BufferedReader reader; for (int i = 0; i < texte.length; i++) { try { reader = new BufferedReader(new InputStreamReader(new FileInputStream(texte[i]))); input = new ANTLRInputStream(reader); } catch (IOException e) { e.printStackTrace(); } SyntaxLexer lexer = new SyntaxLexer(input); CommonTokenStream tokens = new CommonTokenStream(lexer); SyntaxParser parser = new SyntaxParser(tokens); ParseTree tree = parser.stat(); ParseTreeWalker walker = new ParseTreeWalker(); // create standard // walker List<Integer> list = new LinkedList<>(); AnalysisListener extractor = new AnalysisListener(list); walker.walk(extractor, tree); saveToCSV(name, list); } }
/** * This function is supposed to be called directly only from PydmlSyntacticValidator when it * encounters 'import' * * @param fileName * @return null if atleast one error */ public DMLProgram doParse(String fileName, String dmlScript, HashMap<String, String> argVals) throws ParseException { DMLProgram dmlPgm = null; ANTLRInputStream in; try { if (dmlScript == null) { dmlScript = DMLParserWrapper.readDMLScript(fileName); } InputStream stream = new ByteArrayInputStream(dmlScript.getBytes()); in = new org.antlr.v4.runtime.ANTLRInputStream(stream); // else { // if(!(new File(fileName)).exists()) { // throw new ParseException("ERROR: Cannot open file:" + fileName); // } // in = new ANTLRInputStream(new FileInputStream(fileName)); // } } catch (FileNotFoundException e) { throw new ParseException("ERROR: Cannot find file:" + fileName); } catch (IOException e) { throw new ParseException("ERROR: Cannot open file:" + fileName); } catch (LanguageException e) { throw new ParseException("ERROR: " + e.getMessage()); } PmlprogramContext ast = null; CustomDmlErrorListener errorListener = new CustomDmlErrorListener(); try { PydmlLexer lexer = new PydmlLexer(in); CommonTokenStream tokens = new CommonTokenStream(lexer); PydmlParser antlr4Parser = new PydmlParser(tokens); boolean tryOptimizedParsing = false; // For now no optimization, since it is not able to parse integer value. if (tryOptimizedParsing) { // Try faster and simpler SLL antlr4Parser.getInterpreter().setPredictionMode(PredictionMode.SLL); antlr4Parser.removeErrorListeners(); antlr4Parser.setErrorHandler(new BailErrorStrategy()); try { ast = antlr4Parser.pmlprogram(); // If successful, no need to try out full LL(*) ... SLL was enough } catch (ParseCancellationException ex) { // Error occurred, so now try full LL(*) for better error messages tokens.reset(); antlr4Parser.reset(); if (fileName != null) { errorListener.pushCurrentFileName(fileName); } else { errorListener.pushCurrentFileName("MAIN_SCRIPT"); } // Set our custom error listener antlr4Parser.addErrorListener(errorListener); antlr4Parser.setErrorHandler(new DefaultErrorStrategy()); antlr4Parser.getInterpreter().setPredictionMode(PredictionMode.LL); ast = antlr4Parser.pmlprogram(); } } else { // Set our custom error listener antlr4Parser.removeErrorListeners(); antlr4Parser.addErrorListener(errorListener); errorListener.pushCurrentFileName(fileName); // Now do the parsing ast = antlr4Parser.pmlprogram(); } } catch (Exception e) { throw new ParseException("ERROR: Cannot parse the program:" + fileName); } try { // Now convert the parse tree into DMLProgram // Do syntactic validation while converting ParseTree tree = ast; // And also do syntactic validation ParseTreeWalker walker = new ParseTreeWalker(); PydmlSyntacticValidatorHelper helper = new PydmlSyntacticValidatorHelper(errorListener); PydmlSyntacticValidator validator = new PydmlSyntacticValidator(helper, fileName, argVals); walker.walk(validator, tree); errorListener.popFileName(); if (errorListener.isAtleastOneError()) { return null; } dmlPgm = createDMLProgram(ast); } catch (Exception e) { throw new ParseException( "ERROR: Cannot translate the parse tree into DMLProgram:" + e.getMessage()); } return dmlPgm; }